Isn't the codec you're refering to a reader only, not to encode with?

Maybe I'm wrong....

No problem here. Not that I use it. NT25 had a period of time where it was suitable (after many years of .RTV and RTV.AVI).

Tested it out of Vegas Pro 8. Installed from either the codec pack or from an earlier SpeedEDIT.

Do check you are rendering NTSC as 720x486 or PAL 720x576. Rather than 704x576 or 720x480. Probably best to have the pixel aspect ratio set right too but this is for Vegas to adhere to more so than the print-codec, afaik.

If you can, try to go to use the variable resolution capabilities of SpeedHQ or see if MPEG-2 or SonyYUV is more interchangable. Always check your levels between systems too. Vegas has special favorites when it comes to handling/importing AVI as studio-RGB as opposed to computer-RGB (which it defaults to for alien codecs afaik).

I was not very detailed in my question. The project was video captured with a tricaster on the NT 25 codec. I am rendering to a Mpeg-2 to play on a over the air server. The problems I was having was 8.0 crashing (which is a very rare thing for me). It would crash just by playing the video in the timeline. Or when I rendered to Mpeg it would crash about 20 percent done. It would let it play for awhile then poof the error message about NT25. I went to the properties of the media and checked do not resample. This allowed me to render my project and no crashes. I have not seen it on TV yet so I hope all is well. Any thoughts? I have never had to change sampling before but I am happy the Lord gave the wisdom to try it.